US891989A - Chaplet-anchoring device for foundry-flasks. - Google Patents

Description

No: 891,989. PATENTED JUNE 30, 1908. T. B. HARKINS.

GHAPLET ANCHORING DEVICE FOR FOUNDRY FLASKS. APPLICATION FILED JULY 26.1907.

WITNESSES l/Vl/EIV TOR I TTORNEV.

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THOMAS B. HARKINS, OF BRISTOL, PENNSYLVANIA.

OHAPLET-ANCHORING DEVICE FOR FOUNDRY-FLASKS.

Specification of Letters Patent.

Patented June 30, 1908.

Application filed July 26, 1907. Serial No. 385,717.

To all whom it may concern:

Be it known that I, TnoMAs B. HARKINS, citizen of the United States, and resident of Bristol, Bucks county, State of Pennsylvania, have invented certain new and useful Improvements in Chaplet-Anchoring Devices for Foundry-Flasks, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, of which Figure 1 is a plan view showing a preferred form of my chaplet anchoring device. Fig. 2 is a section through the upper portion I or cope of a flask or mold, with a core, the

chaplets extending upwardly from the same, together with my chaplet anchoring device in elevation. Fig. 3 is a section on the line ac:c, Figs. 1 and 2.

The object of this invention is to provide a novel and efficient means for anchoring or retaining the chaplets of a mold flask in place, so as to revent the core from being shifted within tie flask, in the molding operation.

1 is a portion of the cope of a flask having a core 2, a space, 3, in which the molten metal is to be flowed, surrounded by the sand, 1, which is penetrated by one or more (in this instance, two) vertically extending chaplets, 5, of well known construction. Clamped upon the top of the opposite sides of the flask, 1, by the L-shaped bars, 6, are bars 7, having, extending therefrom respectively, across and above the top of the flask, bars, 8. These bars, 8, have, slidably mounted thereon, a box or boxes, 9, adapted to be clamped to said bars at any position of adjustment desired, by suitable clamping screws, 10. Screwed through these boxes are screws, 11, having, at their lower ends, buttons or heads, 12, swiveled thereon, as seen in Fig. 3.

The boxes, 9 are adjusted to such position along the bars, 8, that the buttons or heads, 12 will come over the chaplet rods, 5; whereupon the screws, 11, are screwed downwardly, so that said buttons come against the upper ends of the said chaplet rods. As the said buttons, 12, are swiveled to said screws, 11, they may be clamped ti htly down against the chaplet rods, 5, without disturbing the position of the latter, by reason of the rotation of said screws.

In the drawings, I have shown the bars, 8, pivotally secured to the bars, 7, by bolts, 13. Although this is preferable, so that the angle of the said bars, 8, with relation to the sides of the flask may be adjusted where the chaplets are out of line, said bars, 8, might be rigidly secured to or integral with the bars, 7. I also remark that the number of the boxes, 9, used upon the bars, 8, may be varied, according to the number of chaplets, 5, employed in the mold. Of course, where but one chaplet is employed, the rigid construction of the bars, 8, would be preferable. Other means than that shown may, of course, be employed to secure the bars, 7, to the sides of the flask, the construction shown in Fig. 2 being simply one well known arrangement.

A manifest advantage of my construction is that the anchoring device is adjustable to fit flasks of various widths; that is, when the boxes, 9, are loosened u on the bars, 8, the bar portions, 7, may e drawn apart or brought closer together, in accordance with the width of the flask.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent 1. A chaplet anchoring device comprising the parallel bars, means for securing the oposite ends of each of them to the sides of a ash, together with the box mounted and adapted to slide longitudinally upon said bars, means for securing said box in any position of adjustment, and the screw passing through said box, and whose lower end is ada ted to bear u on a chaplet bar, substantial y as and for t 1e purpose set forth.

2. A cha let anchoring device comprising the parallel bars, means for securing the opupon the top of the Chaplet bar, substantially posite ends of each of them to the sides of a as and for the pur ose set forth. l0 flask, the boX mounted and adapted to slide In testimony W ereo f, I have hereunto longitudinally upon said bars, means for seaffiXed my signature.

curing said box in any position of adj ust- THOMAS B. HARKINS. ment, together With the screw passing through Witnesses said box and havlng the button or head swiv- HORACE W. LEEDS,

eled on its lower end and adapted to bear ELLA M. WARE.

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